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difference between Single-Channel Single-Conversion Mode and Repeat-Single-Channel Mode of ADC

pratap yenubari
Expert 2305 points
Other Parts Discussed in Thread: MSP430F5438A

hi

can u plz elaborate on the working of ADC 8 bit in Single-Channel Single-Conversion Mode and Repeat-Single-Channel Mode for msp430f5438a controller.

i have gone through the user guide but i am still not very much clear on it.

  • 0
    Guru 227245 points

    Single-channel single conversion means that after a conversion, the trigger bit is reset and needs to be set again for the next conversion, even if the MSC and SHP bits are set (well, SHP needs to be set anyway, or one has to reset AC12SC manually to end sampling and start converting the sampled voltage, which makes the two modes behave identically).
    In repeated single conversion mode, with set MSC and SHP bits, the ADC will convert the same channel over and over again as fast as possible (based on the SHT_x setting).
    When using a timer trigger instead of ADC12SC, the two modes are the same if MSC is clear or if MSC is set and SHP is clear.

    See the conversion mode, MSC, SHP and ADC12SC bits as chain of conditions that influence the conversion loop at different locations.

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